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7 Commits

Author SHA1 Message Date
Sean McGivern
04e346df80 Track transaction time 2024-09-06 16:46:40 +01:00
brandonpike
cbf4d58144 Fix lint warnings for rust-1.79 (#769)
2 things that are recommended by rust-lang - implementing `std::fmt::Display` rather than ToString (1) and using clone_from (2).

[1] https://rust-lang.github.io/rust-clippy/master/index.html#/to_string_trait_impl
[2] https://rust-lang.github.io/rust-clippy/master/index.html#assigning_clones

Signed-off-by: Brandon Pike <pikebrandon@att.net>
2024-07-15 20:30:26 -07:00
Олег Дулецкий
731aa047ba Add ExecReload option to pgcat.service for configuration reloads (#760) 2024-06-24 08:57:58 -07:00
Adrian Garcia Badaracco
88dbcc21d1 update rust version in docker image (#762) 2024-06-24 08:51:38 -07:00
Adrian Garcia Badaracco
c34b15bddc Add STOPSIGNAL to Dockerfile (#758) 2024-06-20 23:23:41 -07:00
Andrey Stikheev
0b034a6831 Add TCP_NODELAY option to improve performance for large response queries (#749)
This commit adds the TCP_NODELAY option to the socket configuration in
`configure_socket` function. Without this option, we observed significant
performance issues when executing SELECT queries with large responses.

Before the fix:
postgres=> SELECT repeat('a', 1); SELECT repeat('a', 8153);
Time: 1.368 ms
Time: 41.364 ms

After the fix:
postgres=> SELECT repeat('a', 1); SELECT repeat('a', 8153);
Time: 1.332 ms
Time: 1.528 ms

By setting TCP_NODELAY, we eliminate the Nagle's algorithm delay, which
results in a substantial improvement in response times for large queries.

This problem was discussed in https://github.com/postgresml/pgcat/issues/616.
2024-05-26 14:47:21 -07:00
Mostafa Abdelraouf
966b8e093c Report checkout error when all servers are down (#736)
We shouldn't report checkout_success when we are going to return Error.
2024-05-08 12:18:27 -05:00
11 changed files with 130 additions and 177 deletions

176
Cargo.lock generated
View File

@@ -94,7 +94,7 @@ version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
dependencies = [
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -104,7 +104,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "180abfa45703aebe0093f79badacc01b8fd4ea2e35118747e5811127f926e188"
dependencies = [
"anstyle",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -238,9 +238,9 @@ checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
[[package]]
name = "cc"
version = "1.0.95"
version = "1.0.79"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d32a725bc159af97c3e629873bb9f88fb8cf8a4867175f76dc987815ea07c83b"
checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
[[package]]
name = "cfg-if"
@@ -384,7 +384,7 @@ checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
dependencies = [
"errno-dragonfly",
"libc",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -737,7 +737,7 @@ checksum = "b58db92f96b720de98181bbbe63c831e87005ab460c1bf306eb2622b4707997f"
dependencies = [
"socket2 0.5.3",
"widestring",
"windows-sys 0.48.0",
"windows-sys",
"winreg",
]
@@ -755,7 +755,7 @@ checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
dependencies = [
"hermit-abi",
"rustix",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -810,9 +810,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
[[package]]
name = "libc"
version = "0.2.153"
version = "0.2.147"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
[[package]]
name = "linked-hash-map"
@@ -922,7 +922,7 @@ checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
dependencies = [
"libc",
"wasi 0.11.0+wasi-snapshot-preview1",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -1009,7 +1009,7 @@ dependencies = [
"libc",
"redox_syscall",
"smallvec",
"windows-targets 0.48.1",
"windows-targets",
]
[[package]]
@@ -1293,27 +1293,12 @@ dependencies = [
"cc",
"libc",
"once_cell",
"spin 0.5.2",
"untrusted 0.7.1",
"spin",
"untrusted",
"web-sys",
"winapi",
]
[[package]]
name = "ring"
version = "0.17.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c17fa4cb658e3583423e915b9f3acc01cceaee1860e33d59ebae66adc3a2dc0d"
dependencies = [
"cc",
"cfg-if",
"getrandom",
"libc",
"spin 0.9.8",
"untrusted 0.9.0",
"windows-sys 0.52.0",
]
[[package]]
name = "rustc-demangle"
version = "0.1.23"
@@ -1330,18 +1315,18 @@ dependencies = [
"errno",
"libc",
"linux-raw-sys",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
name = "rustls"
version = "0.21.12"
version = "0.21.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3f56a14d1f48b391359b22f731fd4bd7e43c97f3c50eee276f3aa09c94784d3e"
checksum = "79ea77c539259495ce8ca47f53e66ae0330a8819f67e23ac96ca02f50e7b7d36"
dependencies = [
"log",
"ring 0.17.8",
"rustls-webpki 0.101.7",
"ring",
"rustls-webpki 0.101.1",
"sct",
]
@@ -1360,18 +1345,18 @@ version = "0.100.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e98ff011474fa39949b7e5c0428f9b4937eda7da7848bbb947786b7be0b27dab"
dependencies = [
"ring 0.16.20",
"untrusted 0.7.1",
"ring",
"untrusted",
]
[[package]]
name = "rustls-webpki"
version = "0.101.7"
version = "0.101.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8b6275d1ee7a1cd780b64aca7726599a1dbc893b1e64144529e55c3c2f745765"
checksum = "15f36a6828982f422756984e47912a7a51dcbc2a197aa791158f8ca61cd8204e"
dependencies = [
"ring 0.17.8",
"untrusted 0.9.0",
"ring",
"untrusted",
]
[[package]]
@@ -1392,8 +1377,8 @@ version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d53dcdb7c9f8158937a7981b48accfd39a43af418591a5d008c7b22b5e1b7ca4"
dependencies = [
"ring 0.16.20",
"untrusted 0.7.1",
"ring",
"untrusted",
]
[[package]]
@@ -1514,7 +1499,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2538b18701741680e0322a2302176d3253a35388e2e62f172f64f4f16605f877"
dependencies = [
"libc",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -1523,12 +1508,6 @@ version = "0.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
[[package]]
name = "spin"
version = "0.9.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
[[package]]
name = "sqlparser"
version = "0.41.0"
@@ -1673,7 +1652,7 @@ dependencies = [
"signal-hook-registry",
"socket2 0.4.9",
"tokio-macros",
"windows-sys 0.48.0",
"windows-sys",
]
[[package]]
@@ -1934,12 +1913,6 @@ version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
[[package]]
name = "untrusted"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
[[package]]
name = "url"
version = "2.4.0"
@@ -2097,7 +2070,7 @@ version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
dependencies = [
"windows-targets 0.48.1",
"windows-targets",
]
[[package]]
@@ -2106,16 +2079,7 @@ version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
dependencies = [
"windows-targets 0.48.1",
]
[[package]]
name = "windows-sys"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
dependencies = [
"windows-targets 0.52.5",
"windows-targets",
]
[[package]]
@@ -2124,29 +2088,13 @@ version = "0.48.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
dependencies = [
"windows_aarch64_gnullvm 0.48.0",
"windows_aarch64_msvc 0.48.0",
"windows_i686_gnu 0.48.0",
"windows_i686_msvc 0.48.0",
"windows_x86_64_gnu 0.48.0",
"windows_x86_64_gnullvm 0.48.0",
"windows_x86_64_msvc 0.48.0",
]
[[package]]
name = "windows-targets"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
dependencies = [
"windows_aarch64_gnullvm 0.52.5",
"windows_aarch64_msvc 0.52.5",
"windows_i686_gnu 0.52.5",
"windows_i686_gnullvm",
"windows_i686_msvc 0.52.5",
"windows_x86_64_gnu 0.52.5",
"windows_x86_64_gnullvm 0.52.5",
"windows_x86_64_msvc 0.52.5",
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
@@ -2155,90 +2103,42 @@ version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
[[package]]
name = "windows_aarch64_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
[[package]]
name = "windows_i686_gnu"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
[[package]]
name = "windows_i686_gnu"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
[[package]]
name = "windows_i686_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
[[package]]
name = "windows_i686_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
[[package]]
name = "windows_x86_64_gnu"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
[[package]]
name = "windows_x86_64_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
[[package]]
name = "winnow"
version = "0.5.0"
@@ -2255,5 +2155,5 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
dependencies = [
"cfg-if",
"windows-sys 0.48.0",
"windows-sys",
]

View File

@@ -1,4 +1,4 @@
FROM rust:1-slim-bookworm AS builder
FROM rust:1.79.0-slim-bookworm AS builder
RUN apt-get update && \
apt-get install -y build-essential
@@ -19,3 +19,4 @@ COPY --from=builder /app/pgcat.toml /etc/pgcat/pgcat.toml
WORKDIR /etc/pgcat
ENV RUST_LOG=info
CMD ["pgcat"]
STOPSIGNAL SIGINT

View File

@@ -11,6 +11,7 @@ RestartSec=1
Environment=RUST_LOG=info
LimitNOFILE=65536
ExecStart=/usr/bin/pgcat /etc/pgcat.toml
ExecReload=/bin/kill -SIGHUP $MAINPID
[Install]
WantedBy=multi-user.target

View File

@@ -1204,9 +1204,12 @@ where
if !server.in_transaction() {
// Report transaction executed statistics.
self.stats.transaction();
server
.stats()
.transaction(self.server_parameters.get_application_name());
server.stats().transaction(
Instant::now()
.duration_since(server.transaction_start().into())
.as_millis() as u64,
self.server_parameters.get_application_name(),
);
// Release server back to the pool if we are in transaction mode.
// If we are in session mode, we keep the server until the client disconnects.
@@ -1460,9 +1463,12 @@ where
if !server.in_transaction() {
self.stats.transaction();
server
.stats()
.transaction(self.server_parameters.get_application_name());
server.stats().transaction(
Instant::now()
.duration_since(server.transaction_start().into())
.as_millis() as u64,
self.server_parameters.get_application_name(),
);
// Release server back to the pool if we are in transaction mode.
// If we are in session mode, we keep the server until the client disconnects.
@@ -1511,9 +1517,12 @@ where
if !server.in_transaction() {
self.stats.transaction();
server
.stats()
.transaction(self.server_parameters.get_application_name());
server.stats().transaction(
Instant::now()
.duration_since(server.transaction_start().into())
.as_millis() as u64,
self.server_parameters.get_application_name(),
);
// Release server back to the pool if we are in transaction mode.
// If we are in session mode, we keep the server until the client disconnects.

View File

@@ -38,12 +38,12 @@ pub enum Role {
Mirror,
}
impl ToString for Role {
fn to_string(&self) -> String {
match *self {
Role::Primary => "primary".to_string(),
Role::Replica => "replica".to_string(),
Role::Mirror => "mirror".to_string(),
impl std::fmt::Display for Role {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Role::Primary => write!(f, "primary"),
Role::Replica => write!(f, "replica"),
Role::Mirror => write!(f, "mirror"),
}
}
}
@@ -476,11 +476,11 @@ pub enum PoolMode {
Session,
}
impl ToString for PoolMode {
fn to_string(&self) -> String {
match *self {
PoolMode::Transaction => "transaction".to_string(),
PoolMode::Session => "session".to_string(),
impl std::fmt::Display for PoolMode {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
PoolMode::Transaction => write!(f, "transaction"),
PoolMode::Session => write!(f, "session"),
}
}
}
@@ -493,12 +493,13 @@ pub enum LoadBalancingMode {
#[serde(alias = "loc", alias = "LOC", alias = "least_outstanding_connections")]
LeastOutstandingConnections,
}
impl ToString for LoadBalancingMode {
fn to_string(&self) -> String {
match *self {
LoadBalancingMode::Random => "random".to_string(),
impl std::fmt::Display for LoadBalancingMode {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
LoadBalancingMode::Random => write!(f, "random"),
LoadBalancingMode::LeastOutstandingConnections => {
"least_outstanding_connections".to_string()
write!(f, "least_outstanding_connections")
}
}
}
@@ -999,15 +1000,17 @@ impl Config {
pub fn fill_up_auth_query_config(&mut self) {
for (_name, pool) in self.pools.iter_mut() {
if pool.auth_query.is_none() {
pool.auth_query = self.general.auth_query.clone();
pool.auth_query.clone_from(&self.general.auth_query);
}
if pool.auth_query_user.is_none() {
pool.auth_query_user = self.general.auth_query_user.clone();
pool.auth_query_user
.clone_from(&self.general.auth_query_user);
}
if pool.auth_query_password.is_none() {
pool.auth_query_password = self.general.auth_query_password.clone();
pool.auth_query_password
.clone_from(&self.general.auth_query_password);
}
}
}
@@ -1155,7 +1158,7 @@ impl Config {
"Default max server lifetime: {}ms",
self.general.server_lifetime
);
info!("Sever round robin: {}", self.general.server_round_robin);
info!("Server round robin: {}", self.general.server_round_robin);
match self.general.tls_certificate.clone() {
Some(tls_certificate) => {
info!("TLS certificate: {}", tls_certificate);

View File

@@ -733,6 +733,10 @@ pub fn configure_socket(stream: &TcpStream) {
}
Err(err) => error!("Could not configure socket: {}", err),
}
match sock_ref.set_nodelay(true) {
Ok(_) => (),
Err(err) => error!("Could not configure TCP_NODELAY for socket: {}", err),
}
}
pub trait BytesMutReader {

View File

@@ -813,7 +813,7 @@ impl ConnectionPool {
}
}
client_stats.checkout_success();
client_stats.checkout_error();
Err(Error::AllServersDown)
}

View File

@@ -15,6 +15,7 @@ use std::sync::Arc;
use std::time::SystemTime;
use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, BufStream};
use tokio::net::TcpStream;
use tokio::time::Instant;
use tokio_rustls::rustls::{OwnedTrustAnchor, RootCertStore};
use tokio_rustls::{client::TlsStream, TlsConnector};
@@ -285,6 +286,9 @@ pub struct Server {
/// Is the server inside a transaction or idle.
in_transaction: bool,
/// The time the most recent transaction started.
transaction_start: Instant,
/// Is there more data for the client to read.
data_available: bool,
@@ -804,6 +808,7 @@ impl Server {
process_id,
secret_key,
in_transaction: false,
transaction_start: Instant::now(),
in_copy_mode: false,
data_available: false,
bad: false,
@@ -936,6 +941,7 @@ impl Server {
// In transaction.
'T' => {
self.in_transaction = true;
self.transaction_start = Instant::now();
}
// Idle, transaction over.
@@ -1220,6 +1226,12 @@ impl Server {
self.in_transaction
}
/// The start time of the most recent transaction.
/// Will be stale if not in a transaction.
pub fn transaction_start(&self) -> Instant {
self.transaction_start
}
/// Currently copying data from client to server or vice-versa.
pub fn in_copy_mode(&self) -> bool {
self.in_copy_mode

View File

@@ -14,11 +14,11 @@ pub enum ShardingFunction {
Sha1,
}
impl ToString for ShardingFunction {
fn to_string(&self) -> String {
match *self {
ShardingFunction::PgBigintHash => "pg_bigint_hash".to_string(),
ShardingFunction::Sha1 => "sha1".to_string(),
impl std::fmt::Display for ShardingFunction {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
ShardingFunction::PgBigintHash => write!(f, "pg_bigint_hash"),
ShardingFunction::Sha1 => write!(f, "sha1"),
}
}
}

View File

@@ -187,11 +187,12 @@ impl ServerStats {
/// we report each individual queries outside a transaction as a transaction
/// We only count the initial BEGIN as a transaction, all queries within do not
/// count as transactions
pub fn transaction(&self, application_name: &str) {
pub fn transaction(&self, milliseconds: u64, application_name: &str) {
self.set_application(application_name.to_string());
self.transaction_count.fetch_add(1, Ordering::Relaxed);
self.address.stats.xact_count_add();
self.address.stats.xact_time_add(milliseconds);
}
/// Report data sent to a server

View File

@@ -16,7 +16,7 @@ describe "Stats" do
it "updates *_query_time and *_wait_time" do
connections = Array.new(3) { PG::connect("#{pgcat_conn_str}?application_name=one_query") }
connections.each do |c|
Thread.new { c.async_exec("SELECT pg_sleep(0.25)") }
Thread.new { c.async_exec("BEGIN; SELECT pg_sleep(0.25); COMMIT;") }
end
sleep(1)
connections.map(&:close)
@@ -25,10 +25,32 @@ describe "Stats" do
sleep(15.5)
admin_conn = PG::connect(processes.pgcat.admin_connection_string)
results = admin_conn.async_exec("SHOW STATS")[0]
admin_conn.close
expect(results["total_query_time"].to_i).to be_within(200).of(750)
expect(results["avg_query_time"].to_i).to be_within(50).of(250)
expect(results["total_xact_time"].to_i).to be_within(200).of(750)
expect(results["avg_xact_time"].to_i).to be_within(50).of(250)
expect(results["total_wait_time"].to_i).to_not eq(0)
expect(results["avg_wait_time"].to_i).to_not eq(0)
connections = Array.new(3) { PG::connect("#{pgcat_conn_str}?application_name=one_query") }
connections.each do |c|
Thread.new { c.async_exec("SELECT pg_sleep(0.25);") }
end
sleep(1)
connections.map(&:close)
results = admin_conn.async_exec("SHOW STATS")[0]
admin_conn.close
# This should increase with more queries
expect(results["total_query_time"].to_i).to be_within(400).of(1500)
expect(results["avg_query_time"].to_i).to be_within(50).of(250)
# This should not increase as we did not run any additional transactions
expect(results["total_xact_time"].to_i).to be_within(200).of(750)
expect(results["avg_xact_time"].to_i).to be_within(50).of(250)
expect(results["total_wait_time"].to_i).to_not eq(0)
expect(results["avg_wait_time"].to_i).to_not eq(0)
end